US10799313B2 - Tissue expander with pectoral attachment - Google Patents

Tissue expander with pectoral attachment Download PDF

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Publication number
US10799313B2
US10799313B2 US14/656,327 US201514656327A US10799313B2 US 10799313 B2 US10799313 B2 US 10799313B2 US 201514656327 A US201514656327 A US 201514656327A US 10799313 B2 US10799313 B2 US 10799313B2
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United States
Prior art keywords
shell
attachment flap
expander
expander according
anterior side
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US14/656,327
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English (en)
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US20160262835A1 (en
Inventor
Luis Alberto Davila
Udo Werner Graf
John Wesley Canady
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Mentor Worldwide LLC
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Mentor Worldwide LLC
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Priority to US14/656,327 priority Critical patent/US10799313B2/en
Assigned to MENTOR WORLDWIDE LLC reassignment MENTOR WORLDWIDE LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRAF, Udo Werner, CANADY, John Wesley, DAVILA, LUIS ALBERTO
Priority to CN201680016006.5A priority patent/CN107427332B/zh
Priority to BR112017018672-1A priority patent/BR112017018672B1/pt
Priority to PCT/US2016/017509 priority patent/WO2016144475A1/en
Priority to EP16713139.0A priority patent/EP3267941B1/en
Priority to CA2977040A priority patent/CA2977040A1/en
Priority to AU2016229479A priority patent/AU2016229479B2/en
Priority to JP2017566606A priority patent/JP6847872B2/ja
Publication of US20160262835A1 publication Critical patent/US20160262835A1/en
Publication of US10799313B2 publication Critical patent/US10799313B2/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/02—Devices for expanding tissue, e.g. skin tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/12—Mammary prostheses and implants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0003—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having an inflatable pocket filled with fluid, e.g. liquid or gas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0059—Additional features; Implant or prostheses properties not otherwise provided for temporary

Definitions

  • the present invention relates generally to the field of implantable tissue expanders, and more particularly to implantable mammary soft tissue expanders having an attachment device for securing the pectoral muscle during expansion.
  • Tissue expanders are devices that are implanted beneath the skin and then gradually inflated to stretch the overlying tissue. Such expanders are used to create a pocket for receiving a permanent prosthesis and/or to generate increased skin surface area so that skin can be utilized for grafting or reconstruction.
  • tissue expanders are used to create the mammary pocket that will ultimately receive the permanent mammary implant.
  • These expanders are commonly formed of a silicone polymer shell and are implanted in a collapsed state. After implantation, saline or some other fluid is periodically injected into the expander over time, for example through an injection port, until the desired sized pocket is achieved.
  • a mammary tissue expander including an inflatable shell having an anterior side and a posterior side, with the anterior side having an upper pole portion and a lower pole portion meeting at an apex, and an injection port for receiving fluid therethrough to inflate the expander.
  • the expander further includes a substantially flat attachment flap coupled to the posterior side of the shell and extending in an inferior direction beyond an inferior edge of the shell by a distance D such that the attachment flap may be extended around the inferior edge and upwards to overlay at least a portion of the anterior side of the shell.
  • the expander may be extended upwards to overlay the lower pole and apex of the shell, and may have a distance D that is greater than or equal to 8 cm.
  • the outer perimeter of the attachment flap lies substantially within an outer perimeter of the shell.
  • the shell of the expander may be comprised of silicone, and the attachment flap may be comprised of a mesh material, such as a polypropylene mesh.
  • the mesh material is encapsulated on both sides with silicone.
  • the expander further includes at least one fixation tab coupled to the posterior side of the shell and extending outwardly from the shell, and may further include at least one aperture corresponding to each fixation tab.
  • the at least one aperture is positioned so that the corresponding fixation tab may pass freely therethrough when the attachment flap is extended around the inferior edge and upward across at least a portion of the anterior side of the shell.
  • the at least one aperture may further have a size and shape substantially similar to a size and shape of the corresponding fixation tab.
  • the attachment flap further includes a plurality of holes therein.
  • a method for tissue expansion includes the steps of providing a mammary tissue expander having an inflatable shell having an anterior side and a posterior side, the anterior side having an upper pole portion and a lower pole portion meeting at an apex, and an injection port for receiving fluid therethrough to inflate the expander, and a substantially flat attachment flap coupled to the posterior side of the shell, and extending in an inferior direction beyond the lower pole of the shell; implanting the tissue expander in a female patient such that the posterior side is positioned against the patient's chest wall and the lower pole portion is positioned inferior to the upper pole portion, and such that the expander is placed under a section of the patient's pectoralis muscle; and wrapping the attachment flap from the posterior side around an inferior edge of the shell and upward across at least a portion of the anterior side of the shell.
  • the shell may further include at least one fixation tab coupled to the posterior side of the shell and extending outwardly from the shell, and the attachment flap may further include at least one aperture therein corresponding to the at least one fixation tab.
  • the at least one fixation tab passes freely through the at least one corresponding aperture.
  • the shell is made of silicone and the attachment flap is made of a mesh material.
  • the mesh material of the attachment flap is encapsulated with silicone on both sides.
  • tissue expander having an inflatable shell having an anterior side and a posterior side with the anterior side having an injection port for receiving fluid therethrough, and a substantially flat attachment flap coupled to the posterior side of the shell and extending in an inferior direction beyond an inferior edge of the shell by a distance of at least 8 cm.
  • FIGS. 1 a and 1 b are front and side views of an expander according to the present disclosure
  • FIG. 2 is a perspective view illustrating positioning of the expander of FIG. 1 within a patient
  • FIG. 3 is a side view illustrating positioning of the expander of FIG. 1 relative to a patient's pectoral muscle
  • FIGS. 4 and 5 front views of alternative embodiments of the expander of FIG. 1 .
  • FIGS. 1 a and 1 b show front and side views of an exemplary expander 100 according to the present disclosure.
  • the expander has a posterior side 102 that lies substantially flat against the patient's chest wall and an anterior side 104 that faces outward from the chest wall when implanted.
  • the anterior side 104 includes an upper pole region 106 (i.e., the upper portion of the shell when the implant recipient is standing), a lower pole region 108 (i.e., the lower portion of the shell when the implant recipient is standing) and an apex 109 (corresponding to the point at which the nipple would be in a natural breast) separating the upper pole region and the lower pole region.
  • the outer shell 110 of the expander 100 is typically made of a silicone material and includes an injection port or other valve 112 through which saline or another fluid is injected over time into the contained space defined by the outer shell 110 .
  • the expander shell 110 can have a smooth or textured surface.
  • the expander 100 may include one or more fixation tabs 114 coupled to and extending preferably from the posterior side 102 .
  • the fixation tabs 114 are used to aid the surgeon in securing the expander to the chest wall to maintain its position during expansion, typically by using sutures or the like. In this regard, the fixation tabs further safeguard against accidental puncture of the implant shell.
  • the expander of the present disclosure further includes a substantially flat, flexible attachment flap 116 that extends from the posterior side of the implant in an inferior direction (toward a patient's feet) beyond the outer perimeter 118 of the expander. This flap can also be smooth or textured similar to the outer shell 110 . Referring now to FIG. 3 in conjunction with FIG.
  • the attachment flap 116 extends beyond the perimeter of the expander by a distance D such that, when the expander is implanted, the attachment flap can be extended or wrapped around the inferior edge 128 of the implant, and up across at least a portion of the lower pole of the expander and to the anterior side of the implant, and in a preferred embodiment past the apex 109 to a point where it can be attached to the previously released pectoral muscle 120 by suturing or any other suitable means, as is further illustrated in FIG. 2 .
  • distance D is approximately 8-18 cm, and more preferably 12 cm.
  • the attachment flap is coupled to the posterior side of the implant b any suitable means, such as silicone bonding (un-vulcanized to vulcanized material bonding). In the illustrated embodiment, the attachment flap substantially covers the entire posterior side of the implant. This is not required; however, as it is significant only that it extends beyond the inferior edge of the shell as described above.
  • the overall shape of the attachment flap is designed to closely follow that of the expander when in use.
  • the attachment flap has an outer perimeter 122 that defines its overall shape and is designed so that when wrapped around the anterior side of the implant as described above, the outer perimeter 122 of the attachment flap closely follows the outer perimeter of the expander as is best illustrated in FIG. 2 .
  • the outer perimeter of the attachment flap will lie slightly within the outer perimeter of the shell.
  • the end of the attachment flap may be trimmed, however, so that it aligns with the end of the pectoral muscle.
  • the attachment flap 116 further includes corresponding apertures 124 therein.
  • the apertures 124 preferably have a shape that substantially corresponds to that of the fixation tab as shown, and is positioned on the attachment flap so that when the attachment flap is wrapped around the anterior side of the implant, the attachment flap can freely pass over the fixation tabs without any obstruction.
  • the apertures need not correspond directly in shape to the fixation tabs, but must at least be of an adequate size, shape and position so that the fixation tabs may pass freely through the aperture when the attachment flap is wrapped around the anterior side of the implant.
  • FIG. 5 illustrates an alternative embodiment of an expander device having a different shape fixation tab and attachment flap aperture. As is readily apparent to those skilled in the art, any suitable configuration of these components is within the scope of the present disclosure.
  • FIG. 4 illustrates an alternative embodiment where the attachment flap further includes a plurality of additional apertures 126 .
  • the apertures could have multiple sizes/shapes and would allow for fluid to flow.
  • the attachment flap can be made of any suitable, implantable reinforcement material, such as VicrylTM (polyglactin 910) or Dacron® (polyethylene terephthalate).
  • VicrylTM polyglactin 910
  • Dacron® polyethylene terephthalate
  • the mesh could be encapsulated in silicone.
  • the attachment flap is a Dacron® mesh that is encapsulated by silicone material on both sides.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Dermatology (AREA)
  • Cardiology (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
US14/656,327 2015-03-12 2015-03-12 Tissue expander with pectoral attachment Active 2036-06-03 US10799313B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US14/656,327 US10799313B2 (en) 2015-03-12 2015-03-12 Tissue expander with pectoral attachment
EP16713139.0A EP3267941B1 (en) 2015-03-12 2016-02-11 Tissue expander with pectoral attachment
BR112017018672-1A BR112017018672B1 (pt) 2015-03-12 2016-02-11 Expansor de tecido com fixação peitoral
PCT/US2016/017509 WO2016144475A1 (en) 2015-03-12 2016-02-11 Tissue expander with pectoral attachment
CN201680016006.5A CN107427332B (zh) 2015-03-12 2016-02-11 具有胸部附接件的组织扩张器
CA2977040A CA2977040A1 (en) 2015-03-12 2016-02-11 Tissue expander with pectoral attachment
AU2016229479A AU2016229479B2 (en) 2015-03-12 2016-02-11 Tissue expander with pectoral attachment
JP2017566606A JP6847872B2 (ja) 2015-03-12 2016-02-11 胸筋取付具を備える組織拡張器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/656,327 US10799313B2 (en) 2015-03-12 2015-03-12 Tissue expander with pectoral attachment

Publications (2)

Publication Number Publication Date
US20160262835A1 US20160262835A1 (en) 2016-09-15
US10799313B2 true US10799313B2 (en) 2020-10-13

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US14/656,327 Active 2036-06-03 US10799313B2 (en) 2015-03-12 2015-03-12 Tissue expander with pectoral attachment

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US (1) US10799313B2 (pt)
EP (1) EP3267941B1 (pt)
JP (1) JP6847872B2 (pt)
CN (1) CN107427332B (pt)
AU (1) AU2016229479B2 (pt)
BR (1) BR112017018672B1 (pt)
CA (1) CA2977040A1 (pt)
WO (1) WO2016144475A1 (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11537829B2 (en) 2016-02-09 2022-12-27 Establishment Labs S.A. Transponders and sensors for implantable medical devices and methods of use thereof
US11571271B2 (en) 2016-10-28 2023-02-07 Establishment Labs S.A. Tissue expanders and methods of use thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20152200A1 (it) * 2015-07-15 2017-01-15 Solidago Ag Protesi autoportante per interventi di chirurgia plastica e ricostruttiva
US10945831B2 (en) 2016-06-03 2021-03-16 Musculoskeletal Transplant Foundation Asymmetric tissue graft
USD856517S1 (en) 2016-06-03 2019-08-13 Musculoskeletal Transplant Foundation Asymmetric tissue graft
US10182904B2 (en) 2017-02-21 2019-01-22 Biosense Webster (Israel) Ltd. Heat expandable breast implant using induction heating
KR102144312B1 (ko) * 2018-06-18 2020-08-14 서울대학교병원 유방 재건용 조직 확장기
USD895812S1 (en) 2018-09-07 2020-09-08 Musculoskeletal Transplant Foundation Soft tissue repair graft
US10813743B2 (en) 2018-09-07 2020-10-27 Musculoskeletal Transplant Foundation Soft tissue repair grafts and processes for preparing and using same
USD896383S1 (en) 2018-09-13 2020-09-15 Allergan, Inc. Tissue expansion device
JP7153790B2 (ja) * 2018-09-13 2022-10-14 アラーガン、インコーポレイテッド 組織伸展装置
FR3095586B1 (fr) * 2019-05-05 2023-09-29 Missana Marie Christine Implant mammaire muni d’une attache de fixation
US20230248461A1 (en) * 2020-07-10 2023-08-10 Allergan Inc. Tissue expansion device with fluid collection

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US3858248A (en) 1973-10-09 1975-01-07 Sylvester L Crowe Artificial breast with extensions for use subsequent to mastectomy
US4125117A (en) 1977-02-16 1978-11-14 Lee Denis C External breast prosthesis
EP0338701A2 (en) 1988-04-20 1989-10-25 Dow Corning Corporation Tissue expanders
US4902294A (en) 1986-12-03 1990-02-20 Olivier Gosserez Implantable mammary prosthesis adapted to combat the formation of a retractile shell
US4950292A (en) * 1988-04-20 1990-08-21 Dow Corning Corporation Tissue expanders
US20030149481A1 (en) 2002-02-01 2003-08-07 Guest Robert L. Tissue expander with protection against accidental puncture
CN101658444A (zh) 2009-01-22 2010-03-03 徐国风 一种带支撑牵引带的乳房假体
JP2011502719A (ja) 2007-11-14 2011-01-27 パトリック マックスウェル、ジー インターフェースを有する医療用インプラント組立体
US20120221105A1 (en) 2009-09-11 2012-08-30 Allergan, Inc. Prosthetic device and method of manufacturing the same
US20130253646A1 (en) 2011-11-04 2013-09-26 Allergan, Inc. Silk based implantable medical devices and methods for determining suitability for use in humans
US20130325120A1 (en) 2009-12-22 2013-12-05 William T. MCCLELLAN Systems and methods for tissue expansion with fluid delivery and drainage system
US20150012089A1 (en) * 2012-01-13 2015-01-08 Lifecell Corporation Breast prostheses, methods of manufacturing breast prostheses, and methods of treatment using breast prostheses
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US3858248A (en) 1973-10-09 1975-01-07 Sylvester L Crowe Artificial breast with extensions for use subsequent to mastectomy
US4125117A (en) 1977-02-16 1978-11-14 Lee Denis C External breast prosthesis
US4902294A (en) 1986-12-03 1990-02-20 Olivier Gosserez Implantable mammary prosthesis adapted to combat the formation of a retractile shell
EP0338701A2 (en) 1988-04-20 1989-10-25 Dow Corning Corporation Tissue expanders
US4950292A (en) * 1988-04-20 1990-08-21 Dow Corning Corporation Tissue expanders
US20030149481A1 (en) 2002-02-01 2003-08-07 Guest Robert L. Tissue expander with protection against accidental puncture
JP2011502719A (ja) 2007-11-14 2011-01-27 パトリック マックスウェル、ジー インターフェースを有する医療用インプラント組立体
CN101658444A (zh) 2009-01-22 2010-03-03 徐国风 一种带支撑牵引带的乳房假体
US20120221105A1 (en) 2009-09-11 2012-08-30 Allergan, Inc. Prosthetic device and method of manufacturing the same
US20130325120A1 (en) 2009-12-22 2013-12-05 William T. MCCLELLAN Systems and methods for tissue expansion with fluid delivery and drainage system
US20130253646A1 (en) 2011-11-04 2013-09-26 Allergan, Inc. Silk based implantable medical devices and methods for determining suitability for use in humans
US20150012089A1 (en) * 2012-01-13 2015-01-08 Lifecell Corporation Breast prostheses, methods of manufacturing breast prostheses, and methods of treatment using breast prostheses
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AU Application No. 2016229479—Australian Full Examination Report dated Jan. 13, 2020.
CN Application No. 201680016006.5-Chinese Search Report dated Sep. 23, 2019.
CN Application No. 201680016006.5—Chinese Search Report dated Sep. 23, 2019.
JP Application No. 2017-566606-Japanese Office Action Translation dated Jan. 7, 2020.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11537829B2 (en) 2016-02-09 2022-12-27 Establishment Labs S.A. Transponders and sensors for implantable medical devices and methods of use thereof
US11593601B2 (en) 2016-02-09 2023-02-28 Establishment Labs S.A. Transponders and sensors for implantable medical devices and methods of use thereof
US12001904B2 (en) 2016-02-09 2024-06-04 Establishment Labs S.A. Transponders and sensors for implantable medical devices and methods of use thereof
US11571271B2 (en) 2016-10-28 2023-02-07 Establishment Labs S.A. Tissue expanders and methods of use thereof

Also Published As

Publication number Publication date
EP3267941B1 (en) 2021-06-16
CA2977040A1 (en) 2016-09-15
US20160262835A1 (en) 2016-09-15
JP6847872B2 (ja) 2021-03-24
EP3267941A1 (en) 2018-01-17
AU2016229479B2 (en) 2020-07-02
CN107427332B (zh) 2020-08-04
WO2016144475A1 (en) 2016-09-15
CN107427332A (zh) 2017-12-01
AU2016229479A1 (en) 2017-08-31
BR112017018672A2 (pt) 2018-04-17
JP2018512248A (ja) 2018-05-17
BR112017018672B1 (pt) 2022-06-28

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